Final answer:
The statement that insulin levels go down when glucose levels go up is false; the opposite is true, as insulin is secreted to lower elevated blood glucose levels.
Step-by-step explanation:
In a healthy individual, when glucose levels in the blood rise, the pancreas responds by secreting insulin to help regulate these levels. The statement that insulin levels in the blood will go down when glucose levels go up is false. In fact, increased blood glucose levels stimulate the production of insulin, which in turn facilitates the uptake of glucose into cells and its conversion into glycogen in the liver, effectively lowering the blood glucose levels. Conditions such as Type I diabetes are characterized by an inability to produce enough insulin, leading to persistent high blood glucose levels, contrary to the body's normal feedback loop.